Gas valve



June13, 1939. R. E, SCHOENB'ERGER 2,162,231

GAS VALVE Filed April 20, 1958 2 Sheec s-Sheet 1 INVENTOR ATTORNEYS. v

Jan 13, 1939- R. E. SCHOENBERGER' 2,162,231

INVENTOR.

' ATTORNEYS.

Patented June 13, 1939 UNITED STATES PATENT OFFICE" Gas VALVE Robert E.Schoenberger, Shaker Heights, Ohio,

assignor to The W. J. Schoenberger Company, Cleveland, Ohio, acorporation of Ohio- Application April 20, 1938, Serial No. 203,208Claims. (01.251-104 My invention relates to gas valves for controllingthe flow of gas to a double gas range burner of the combined simmer andmain burn er type.

5 The principal object of the invention is to provide a simplyconstructed eflicient valve, economical of manufacture and having fouroperative positions. In the first position of the valve a reduced supplyof gas is directed to .thc simmer burner only. In a second position thesimmer burner receives the full or maximum flow while i in the other twopositions full and reduced supply of gas is respectively delivered toboth burners.

A still further object of our invention is to provide a valve of thistype which is simple in V construction and operation and very effectiveto accomplish the desired results and having certain details ofstructure and combination of parts hereinaiter more fully described. a

In the accompanying drawings:

Figure 1 is a partial section of the valve showing the leads to thesimmer and main burner, taken on line l--l of Figure 3;

Figure 2 is a partial section of the valve on line 2--2 of Figure l; g

Figure 3 is a front end elevation of the valve;

Figure 4 is a diagrammatic view of the valve in section showing theleads to the main and simmer burner in shut off position;-

. Figure 5 is a section on line 55 of Figure 4;- Figure 6 is adiagrammatic view of the cap showing the floating washer in the positionassumed when the valve is in shut off position;'

' 5 Figure '7 is a diagrammatic view of the valve in section showing theleads to main and simmer burner in low simmer position;

Figure 8 is asection on line 8-4! of Figure '7;

Figure 9 is a diagrammatic view of the cap and floating washer in lowsimmer position;

Figure 10 is a diagrammatic view of the valve in section showing theleads to main and simmer burner in full simmer position;

Figure 11 is a section on line ll-il of Figure 10;

46 Figure 12 is 'a diagrammatic view of the cap showing the floatingwasher in the position assumed by the washer when the valve is in fullsimmer position;

: Figure 13 is a diagrammatic view of the valve in section showing theleads to main and simmer burner in full simmer and main burner position;

Figure 14 is a section on line ll-M of Figum 13; 5 Figure 15 is adiagrammatic view of the cap and supply of gas for the valve housing isobtained floating washer in full simmer and main position;

Figure 16 is a diagrammatic view of the valve in section showing theleads to main and simmer burner in low simmer and low main burnerposition; a Figure 1'7 is a sectionon line, ll-l'l of Figure 16;-

Figure 18 is a diagrammatic view of the cap and floating washer in lowsimmer and low maino position; c m 1 1 Figure 19 is a perspective viewlookingfrom the bottom showing the several stop positions inthe cap; I

. Figure 20 is a partial view in perspective of the 15 plug valve; 1

Figure 21 is aperspective view of the floating washer; and 1 Figure 22is a partial perspective'view, of th valve stem. 1

Referring more particularly to thewdrawings the improved valve comprisesa valve housing or casing I, having thereina plug receiving bore'2,which extends inwardly from the open outer end of the casing to thebottom wall 3 thereof. Pro1 jecting downwardly from the casing is athreaded nipple 4 adapted for mounting the valve preferably inhorizontal position on the upper portion of a gas manifold, not shown,and whereby a through the vertically disposed gas supply passage .5, forfeeding the burners not shown, however it will be understood that thevalve may be supa ported in any desired position.

Projecting inwardly or rearwardly from the inner end of the housing I,on opposite sides of the longitudinal axis of the bore 2, are two screwthreaded parallel nipples 6 and l forconnection with the respective mainand simmer burners. The gas outlet passages 8 and 9 through these 40nipples are provided with fixed needle valves i0 and II which cooperatewith adjustablev threaded and perforated caps l2 and H for regulatingthe volume of gas which may flow through the cap perforations ororifices l3 and I4 to the usual mixing tubes, not shown. 1 a

The casing is formed with a drilled externally and internally threadedupwardly projectingex tension l5 forming a chamber l6. Extending throughthe bottom wall ll of chamber I6 is a restricted bore or passage l8opening at its inner or lower end into the bearing surface of plug?receiving bore 2, on a plane with or just above" the tapered bottom wall3 thereof. A drilled internally and externally threaded extension i9,

restrict the size of orifices or passages l3 and 22, 7

thus regulating the amount of gas which may now through these passages.Under certain gas conditions it might be practical to permanentlyrestrict the orifices or passages l3 and 22 to the desired extent thusmaking it possible to eliminate the needle valves. Caps 2! close the.chambers l3 and to the atmosphere and enclose the needle valves andprevent unauthorized tampering after the valves have been adjusted. Anupwardly and rearwardly inclined by-pass passage 21- communicates at itsinlet end with the plug receiving bore 2, and at its other end with'thechamber I. A second by-pass passage 23, having a short branch '23, leadsfrom .the bearing surface of the plug receiving bore to the chamber 20and places this chamber in communication with the bore 2 at a pointsubstantially opposite the gas inlet 3. There .is also a short laterallyextending branch passage 8' which leads from the bearing surface of theplug receiving bore 2 directly to the inlet end oi the rearwardlyextending gas outlet passage 3 for the main burner. Passages 3 and 3'and 23 and 23 respectlvely are in eifect, continuous passages and willbe considered as such. The passages 21, 28 and l as well as the gasinlet passage 3, all open into the plug receiving bore in substantiallya commonplane, and at a point considerably forward of the bottom orinner wall of the bore 2, while passages l3 and 24 also open into thebore in substantially a common plane adjacent the bottom of the bore. 4|A tapered plug valve 30 adapted to be snugly but rotatably received inthe bore 2,- of the casing with its inner end spaced from the bottomwall 3 of the bore provides a space or chamber 6| in the lower end ofthe bore 2, with which the passages 13 and 24 communicate. The plugvalve is formed with a. relatively small straight passage 3| extendingtransversely therethrough and communicating at opposite ends with thebore 2. A relatively large transverse slot or passage 32, is 5 also cutin the side of the plug in the same plane with and parallel to that ofthe passage 3|, both of these passages being adapted to be brought' intoregister with one or more of the casing passages I, 21, 23 and 8 whenthe plugis rotated to its respective positions. A substantiallylongitudinally disposed slot or passage 33 in the plug 33, places thetransverse passage 32 and the space or chamber 6| in the inner end ofbore 2, in communication with each other in all the plug valve.

In operation the. plug valve 33 is manually rotated by means of a valvestem 34 having its inner end extending into and interengaging with ahollow extension 35 formed on the outer end of the plug, the stem beingprovided with an operating handle 60 rigidly attached thereto by anysuitable fastening means. Hollow extension 35 is formed with twooppositely arranged slots 38 and 31 of 'dillerent width to slidablyreceive finger portions 33 and 33, integrally formed on the innerpositions of aieaasi are proportioned to lit the slots and 31 and arefol diiferent width to insurepro'per assembly.

A flanged aperture cap member 40 sleeved over thevalve'stem is formedwith a depending flange 4| having apertured ears 42 and 42? which seat Aupon and are secured to laterally extending apertured lugs 43 and 43,formed on the outer end of the casing I and in spaced relation to theend face thereof. The upwardly facing portion of the flange 4i is formedwith a cut away portion or recess 44 adjacent one side of the ear 42,and the downwardly facing portion of the flange has a cutaway portion orrecess 45 between the two ears 42, 42. One end of recess 44 serves as astop shoulder 46 and the opposite end walls of recess 45 likewiseprovide'stop shoulders 41 and 42 for halting rotation of the valve atcertain positions, when the elongated arm 49 of a lock plate or washer50 is slidably but non-rotatably seated within the hollow extension 35of the casing and in engagement with the slots or recesses 44-43. Thearm 49 is of a size and length to extend snugly but slidably throughslot 31 and to engage and ride over the edge of flange 4|.

When the valve is in oil or inactive position arm 43 engages stopshoulder 46 and prevents rotation in a clockwise direction. If the valveis now rotated in an anti-clockwise direction until the arm 49 of lockwasher 50, registers with a recess 5| formed in the ear 42 of cap 40, acoil spring 32 seated in hollow extension 35 of plug 30, forces the arm49 into this recess thus latching the valve in its first active positionand in which areduced supply of gas is supplied to the simmer burner.Further anti-clockwise movement of the valve to its second positioncauses the lock washer to snap into recess 45 where it is held againstreverse movement by the shoulder 41, except that when the stem ismanually moved in an axial direction by pressing on handle 50, and thelock washer is thus moved out of recess 45, the valve movement can bereversed. In this second active position a full supply of gas isreceived by the simmer burner. If the anti-clockwise rotation of thevalve is continued until the restricted flow of gas to both main andsimmer burners, it is necessary to move the stem axially to disengagethe lock washer from the shoulder 48 to permit further anti-clockwisemovement of the valve, until halted by a stop shoulder 53.

As previously stated there are four active valve positions, low simmeronly, high simmer only, full main and simmer and low simmer and mainpositions respectively. In the first position the relatively small orrestricted transverse port or passage 3| through the valve plugregisters at opposite ends with the main gas supply passage 5 and theupwardly and rearwardly inclined restricted by-pass passage 21respectively. Gas thus flows through passages 5 and 3i and by-passpassage 21 to the chamber or pocket l6 and thence through needle valvecontrolled passage l8, into one side of the chamber or space 6|, at thebottom of plug receiving bore 2, from whence it, reachesthe simmerburner main outlet passage 9 by means of oblique passage 24, leadingfroni the opposite side of said space 6|. The apertured caps l2 and I2are always set for the desired maximum flow of gas to the respective 75burners, but the passage 3! is of the necessary restricted area todeliver only sufllcient gas to maintain a reduced or low flame at thesimmer burner, it of course being understood that all other outletpassages leading from the bore 2 to the respective burners are closed bythe plug in this position. v

In the second position of the valve plug the latter has been turnedcounter clockwise sufllciently to just bring the cross slot or port 32into register with main gas supply passage 5 and to close the passage21, the main burner outlet passage 8 also remaining closed. Gas nowflows from the cross slot 32 down through the substantiallylongitudinally disposed slot 33 in the plug to the chamber or space M inthe bottom of bore' 2, and thence out through passage 23 to the simmerburner outlet passage 9. as in the first position. The slots 32 and 32and passages 24 and a are of a size to carry sumcient gas to maintainthe "simmer burner on high or maximum flame requirements. Any gas whichbacks up into chamber l6 through passage it will of course be trapped,and therefore inellective because passage 21 is closed by the plugvalve. 4

Further anti-clockwise movement brings the plug into third or fullsimmer and full main burner position, in which the transverse slot 32 inthe plug registers with the main burner outlet opening or passage 2. Afull flow of gas is thus permitted to flow from main supply passage h tocross slot 32 and thence direct through passage 8 to themain burner. Atthe same time a full supply of gas flows to the simmer burner from thetransverse slot 32, down through the longitudinally disposed slot as, tothe bottom of the casing bore 2, from where it passes out throughpassages 2d and ll to this burner. Bach pressure will also cause gas toback up from outlet passage 9 through valve controlled passage 22 intochamber 2d, and thence into by pass passage 2%. However, this backpressure gas is ineffective due to the fact that the passage 2b isclosed at the bore 2 by the plug.

ply passage 5 and the other end into register with the by-pass passage28, leading from the bore 2 to the chamber 20. A reduced or low volumeof gas, sumcient to support a low flame at both burners, will thus flowthrough passages 3i and 28 into chamber 20, and thence out throughrestricted passage 22, into and through simmer outlet passage 9 to thesimmer burner. At the same time, a back pressure is built up in chamber20 due to the restricted size of the valve controlled inlet end ofpassage 22 which causes the excess supply of gas, or that gas not takenby the passage 9, to flow through the passage 22 into the bottom of plugreceiving bore 2. From bore 2 this. gas flows through longitudinallydisposed slot 33 into the cross slot 32 which is now in register withthe casing outlet passage 8', in turn leading into main burner outletpassage 8, and thence to the main burner. 7

Having thus described the invention, what I. claim is: l. A gas rangevalve for a double burner comprising a casing with a plug receiving borehaving an end wall, a solid plug having rotatable bearing in said boreand spaced from said end wall to form a gas chamber in the end of saidbore, said casing having a first outlet passage leading from said gaschamber to one burner, said casing having a second outlet passageleading from the plug receiving bore to the other burner, said casinghaving a gas supply passage leading into the plugreceivinglongitudinally disposed slotin the plug communicating atopposite ends with said transverse slot and said gas chamber such thatin one rotary position of the plug a reduced volume of gas may flowthrough the gas supply passage into one of said pockets and thencethrough said gas chamber into said first outlet passage, the flow of gasto the second outlet passage-being sealed by the plug, and such that ina second rotary position a full volume of 'gas may new from the gassupply passage through said cross longitudinal slot to the gas chamberand thence to said first outlet pas,- sage, and such that in a thirdposition of the plug a full volume of gas may flow from the gas supplypassage through the cross slot direct to the second outlet passage andfrom the cross slot through the substantially longitudinally disposedslot to the gas chamber and thence to the first outlet passage, and suchthat in a fourth position a reduced volume of gas may flow from the gassupply passage through the cross by-pass passage into one of saidpockets and thence to said first outlet passage, a portion of the gasdelivered to said last mentioned pocket flowing into the gas chamber andthence through the slots in said plug to the sicond outlet passage andmeans for rotating the P g.

2. A gas range valve for a double urner comprising a casing with a plugreceiving bore having an end Wall, a solid plug having rotatable bearingin said bore and spaced from said end wall to form a gas chamber in theend of said bore, said casing having a first outlet passage leading fromsaid gas chamber to one burner, said casing having a second'outletpassage leading from the plug receiving l bore to the other burner, saidcasing having a gas supply passage leading into the plug receiving bore,a pair of hollow extensions on said casing forming pockets, each of saidpockets having a.

restricted passage leading into said gas chamber, said casing havingseparate by-pass passages leading from the plug receiving bore to therespective pockets, said plug having a crossby-pass passage and a crossslot opening into the bearing surface of said plug receiving bore, saidcross slot also communicating with said gas chamber such that in onerotary position of the plug a reduced volflow of gas to the secondoutlet passage being second outlet'passage and .from the cross slot tothe gas chamber and thence to, the first outlet passage, and such thatin a fourth position a reduced volume of gas may flow from the gassupply passage through the cross by-pass passage into one of saidpockets and thence to said first outlet passage a portion oi. the gasdelivered to said last mentioned pocket flowing into the gas in saidbore and spaced from said end wall to form a .gas chamber in the end ofsaid bore, said casing having a first outlet passage leading from saidgas chamber to one burner, said casing having a second outlet passageleading from the plug receiving bore to the other burner, said casinghaving a gas supply passage leading into the plug receiving bore, ahollow extension on said casing forming a pocket, said pocket having arestricted passage leading into said gas chamber, said casing having aby-pass passage leading from the,plug receiving bore to the pocket, saidplug having a cross bypasspassage and a cross slot opening into thebearing surface or said plug receiving bore, said cross slot alsocommunicating with said gas chamber such that in one rotary position ofthe plug a reduced volume 01' gas may fiow through the gas supplypassage into 'said pocket and thence through said gas chamber into saidfirst outlet passage, the flow of gas to the second outlet passage beingsealed by the plug, and such that in a second rotary position a fullvolume of gas may fiow from the gas supply passage through said crossslot to the gas chamber and thence to said first outlet passage, andsuch that in a third position of the plug a full volume of gas may flowfrom the gas supply passage through the cross slot direct to the secondoutlet passage and from the cross slot to the gas chamber and thence tothe first outlet passage and means for rotating the plug.

4, A gas range valve for a double burner comprising a casing with a plugreceiving bore having an end wall, a solid plug having rotatable bearingin said bore and spaced from said end wall to form a gas chamber in theend of said bore, said casing having a first outlet passage leading fromsaid gas chamber to one burner, said casing having a second outletpassageleading from the plug receiving bore to the other burner, saidcasing having a gas supply passage leading into the plug receiving bore,a hollow extension on said casing forming a pocket, said pocket having arestricted passage leading into 'said gas chamber, said casing having aby-pass and thence through said gas chamber into said first outletpassage, the flow of gas to the second outlet passage being sealed bythe plug, and such that in a second rotary position a full volume I fromone of said slots to the gas chamber and thence to the first outletpassage and means for rotating the plug.

5. A gas range valve for a double burner comprising a casing with a plugreceiving bore having an end wall, a solid plug having rotatable bearingin said bore and spaced from said end wall to form a gas chamber in theend of said bore, said casing having a first outlet passage leading iromsaid gas chamber to one burner,

said casing having a second outlet passage leading from the plugreceiving bore to the other burner, said casing having a gas supplypassage leading into the plug receiving bore, a pair of pockets formedon said casing, each of said pock ets having a restricted passageleading into said gas chamber, said casing having separate by-passpassages leading from the plug receiving bore to the respective pockets,saidplug having a cross by-pass passage and a cross slot parallel to andsubstantially in the same plane as said cross bypass passage, openinginto the bearing surface, of said plug receiving bore, the main supplypassage, the inlet end of said second outlet passage and said casingby-pass passages opening into the plug receiving bore in substantially acommon plane, said cross slot also communicating with said gas chambersuch that in one rotary posis tion of theplug a. reduced volume of gasmay fiow through the gas supply passage into one of said pockets andthence through said gas chamber into said first outlet passage, the flowof gas to the second outlet passage being sealed by the plug, and suchthat in a second rotary position a full volume oi. gas may fiow from thegas supply passage through said cross slot to the gas chamber and thenceto said first outlet passage, and such that in a third position of theplug a full volume of gas may flow from the gas supply passage throughthe cross slot direct to the second outlet passage and from the crossslot to the gas chamber and thence tothe first outlet passage, and suchthat in a fourth position a reduced volume of gas may flow from the gassupply passage through the cross by-pass passage into one of saidpockets and thence to said first outlet passage, a'portion of the gasdelivered to said last mentioned pocket flowing into the gas chamber andthence through the slot in said plug to the second outlet passage andmeans for ro- Q tating the plug. 1

ROBERT E. SCHOENBERGER.

